Machine for generating patterns.



F. H. PERRY.

MACHINE FOR GENERATING PATTERNS.

APPLICATION FILED SEPT-21.1911.

Patehtedsept. 7, 1915.

4 SHEETS-SHEET 1.

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COLUMBIA PLANOGRAPH co.. WASHINGTON, 0. c.

F. H. PERRY.

MACHINE FOR GENERATING PATTERNS.

-APPLI CATION FILED SEPT.2I 191l- Patented Sept. 7, 1915.

4 SHEETS-SHEET 2.

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F. H. PERRY.

MACHINE FOR GENERATING PATTERNS.

APPLICATION FILEDVSEPT-ZI, 1911.

Patented Sept. 7, 1915.

4 SHEETS-SHEET 4.

FREDERICK H. PERRY, 0F BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PA'IERSON, NEW JERSEY, A CORPORATION NEW JERSEY.

Specification of Letters Patent.

Application filed September 21, 1911. Serial No. 650,519.

To all whom it may concern:

Be 1t known that I, FREDERICK H. PERRY,

a citizen of the United States, residing at' in any field for which they are adapted by their nature.

An important object of my invention is to provide a. pattern generating machine, of simple and compact construction, having an edge device in which a series of members are arranged radiallyin curved form, preferably circular, for engagement with a model, such as a model shoe, the members being positioned by this engagement for use thereafter in controlling the movements of a cutter operating upon the periphery of a pattern such as a pattern blank disk, the v,

variations in the peripheral contour presented by the edge-members being'transmitted to the cutter'preferably by means of a follower and suitable connections, the follower being held in position for contact with the edge members as the circular edge device is rotated past the follower.

Among other important objects of my invention is to provide means by which this circular edge device may be removed bodily as a unitary structure from the pattern generator without affecting the adjustment of the members constituting the edge device; and also means by which the edge-members may be adjusted either by measurement or by contact with the model while thus removed'from the pattern generator.

Still other notable objects of my invention comprise means for supporting the circular edge device concentrically with the pattern blank disk; also improved connecting levers and controlling devices for the follower and cutter.

Another object of my invention comprise the provision of machines of this class with a receptacle to hold the chips produced from Patented Sept.7,1915.

ing on the workbench to the detriment of]- good work, and increasing the fire risk as ployees. I prefer to provide for the removable support of this receptacle by the use of a pintle on a' suitable portion of the machine, upon which pintle the receptacle may be swung away from the cutter or other operating member to clear the latter and the pattern-blank for inspection, adjustment or removal, and when the receptacle is removed from the pintle, the latter may serve as the support for other attachments. v

The provision of one such attachment constitutes a further important object of my invention, viz., to provide means for sharpening the operating member, particularly when the latter takes the form of a plurality of cutter teeth assembled upon a suitable rotatable arbor, carried by an arm which swings to and fro relatively to the periphery of the pattern-blank under the influence of a follower cooperating with a suitable model. Such a sharpening attachment may comprise a socket-member to be seatedupon the pintle or other support rotatably, and provided with a transverse, extensible carrier-arm having a carrier-head to. receive the respective cutter teeth in turn, and presentthem for treatment by a grinding wheel fastened temporarily upon, and

' rotatable with, the arbor from which the cutter teeth have'been removed for treatment. I provide also suitable means for adjustment of the carrier-arm and the socket-member relatively to the support and the arbor and also means for securing these respective instrumentalities in place.

' The various features of my invention will be illustrated and described fully in the accompanying drawings and specification and pointed out in the claims.

In the drawings, Figure 1 is a plan view of a pattern generator in the construction of which my improvements have been embodied; Fig. 2 is a view in front elevation of said machine; Fig. 3 is a fragmentary detail view in vertical section taken on the line 1, showing the pattern blank disk support and the edge device in assembled relation; Fig. 1 is a detail view in perspective of several of the edge blocks taken separately but shown in their relative position; Fig. 5 is a fragmentary detail view in horizontal section on the line 'a2 a: Fig. 3; Fig. 6 is a fragmentary view in plan, similar to Fig. 1, of a portion of said machine, showing in connection therewith a detachable receptacle for the chips produced by the cutter; Fig. 7 is a fragmentary view in perspective of a detachable grinding attachment for said cutter knives, enough of the machine parts being illustrated to show the place and manner of emplacement of the grinding attachment; and Fig. 8 is a fragmentary detail view in perspective of the head of said grinding attachment, with a cutter knife in place.

In the embodiment of my invention selected for illustration and description to enable ready and complete understanding. of

.my improvements, the part designated by the reference numeral 1 (see Fig. 2) is a gage disk which in accordance with my i11- vention forms part of my improved edge device, and may be of any suitable construction, being shown in the instance illustrated as of circular contour and having its periphery roughened, being designed to serve as a rotary track or feeder with which may be engaged andturned a suitable portion of the model, such as the edge of the sole of a model shoe.

The parts designated by the reference numerals 2 and 22 are blocks or members which together constitute means to be engaged with another region of the model, as for example the upper of a model shoe, these members being arranged to project beyond the gage 1 sufficiently to insure engagement with the upper even when the projecting portion of the edge of the sole of the model shoe is of considerable breadth, the relation of the members 1 and 2 being however regulated by the exigencies of the particular model to be engaged. These members 2 and 2 may be of any suitable material and construction, and arranged on any suitable support, and as one convenient form I have shown them as disposed radially about the axis of a supporting member 3 (see Fig. 3)

which in the instance illustrated is a vertical I to suitable character.

to provide means to operate upon the pat tern blank, and these means may be of any As one convenient form of such means I have shown a rotary cutter or pattern generator comprising knives 61 mounted upon an arbor 13 secured by a nut 6 in a lever 7 mounted to swing about a pivot bolt 5 (see Fig. 1), this lever having an arm 8 provided with a follower device 9 presented in position to be engaged with the blocks 2 and 22 so that when the shaft 3 is rotated with the blocks 2 and 22 the latter will act upon the follower 9, moving it outward according to the degree of radial projection of the blocks, and as the follower 9 moves it carries with it the arm 8, lever 7 and cutter 61, causing the latter to cut more or less deeply into the periphery of the pattern blank disk at, the latter being made of any suitable material, preferably wood.

The operating instrumentalities may be actuated by any suitable means, and as one convenient form of actuating device for the cutter 61 I have shown a belt 10 running from a pulley 12 on the cutter shaft 13 to and around a pulley 14 mounted rotatably on a sleeve 150 on the pivot bolt 5 (see Fig. 2), and connected with a pulley 15 driven by a belt 16 led thereto by direction pulleys 17 journaled in suitable bearing brackets 18 mounted on the frame 19, said frame having suitable attaching portions 20 by means of which it may be secured to a suitable base (not shown). The reference numeral 21 designates an idler pulley carried by a lever 221 constructed and arranged to keep the belt 10 taut. As one suitable form of actuating means for the shaft 3 and its supported parts 1, 2 and 4, I have shown a countershaft 23 mounted in suitable bearings 2% and 25 in the frame and having a worm gear 26 arranged to engage a worm 27 fast on the main actuating sleeve 5, the countershaft being provided also with a sleeve 28 (see Fig. 2) mounted loosely upon the countershaft and provided with a worm 29 adjacent, and to engage, a worm gear 30 keyed at 31 upon the shaft 3. (See Fig. 3.)

A clutch member 32 is connected by a pin 33 to rotate with the countershaft, and has clutch pins 34 to enter notches 35 in the sleeve 28, having also a handle 36 by which it may be moved into position to connect the sleeve and countershaft co-rotatively or may be pulled outwardly to disconnect the countershaft from the sleeve.

Preferably suitable means will be provided to stop the accidental rotation of the shaft 3 and its related parts, and as one suitable form of such means I have shown a brake 37 (see Figs. 3 and 5) presented in position to engage frictionally the hub 38 of the worm gear 30, this brake fork being supported in any suitable way, as for exam ple by the screw stud 39 entering a socket 4:0 in the brake fork, the latter preferably having a spring 4.1 tending normally to force the brake against the hub 38, the tension of the spring and the degree of pressure of the brake being preferably capable of regulation by adjusting the screw stud 39,

which may extend outside the portion 42 of the frame in which it is mounted.

I have shown the shaft 3 as supported (see Fig. 8) in suitable bearings 44 and 45 in the frame, and as provided with suitable means 46 to actuate the pattern blank disk and the edge device composed of the gage 1 and blocks 2 and 22, which means may .be of any suitable form. The means illustrated consists of a conical collar 46, which may be united to rotate with the shaft 3 in suitable fashion, as by being made integral'therewith, and this member 46 serves as one member of a friction clutch, the cotiperating member of which is shown as a hub 47 having a chamber 48 with inclined walls to be engaged frictionally with the cone clutch member 46 so that the two will rotate together when pressed intoengagement. I prefer to provide this member 47 with a notch 49 to be engaged by a positioning device 50 (see Fig. 2) which can be pressed into engagement manually by the operator,

the purpose of this positioning device being to enable the operator to stop the clutch 47 and its related parts at a selected point so that the cutter will operate upon each pattern-blank-disk 4 at the same relative print upon its periphery, and thus when the pattern disks are put into use thereafter the operator making use of them will be enabled to position them properly in the machine where they are to be used, as for example in a sole rounding machine, in which the edges of the soles of marketable shoes are to be trimmed like the sole of the model shoe which may have been used in setting the gage blocks 2 and 22. The member 50 may have its head 53 beveled as indicated in Fig. 2 and Fig. 1, so that when the shaft 3 is rotated the member 50 will be thrown out automatically and will not interfere with rotation of the member 47 and the pattern-blank-disk carried thereby. i

The pattern-blank-disk may be of any suitable construction and supported by the shaft Sin any suitable manner, and as one convenient form of means to connect the pattern-blank-disk .co-rotatively with the shaft 3 I have shown the pattern. blankdisk (see Fig. 3) as mounted upon a hub 54,'to which the disk is connected by a spline 55 having a stud 56 to enter a socket 57 in the hub, the spline extending downward through a notch 58 in the disk, beyond-the lower surface of which theespline projects into position to enter a notch 60 in the clutch member 47, so that the hub 54, disk 4 and clutch member 47 are connected positively for co-rotation.

' After the pattern blank disk 4 has been cut to shape, it may be used in turn as a master pattern for the purpose of shaping other patterns, and to permit thisto be accomplished readily Ihave constructed the operating instrumentalities so that a disk or pattern blank 104 preferably exactly like the disk 4 can be superimposed thereupon coaxiallyfwith the shaft 3, and connected with the hub 54 by a spline 155 having a peg 156 entering a socket 157 of a hub 154, these parts corresponding in construction and operation with the .parts 54, 55, 56 and 57 any suitable structural detail and may be supported in any suitable'fashion to, rotate with the member 3 and the pattern blank disk 4. ,As one convenient construction for this purpose I have shown a hub removable from the member 3 independently. of

tilting the circular edge-device may be of 1 the disk 4 and 104, but preferably provided a with means to connect the hub 70 with the adjacent hub 154 or 54, according to whether one or both of the hubs 54 and 154 are used, and for this purpose I have shown an integral flange 71 upon the hub 70 provided with a" projection 72 adapted to serve as a spline,

enter ing'a notch in the hub 154 so that the hub 70 andthe parts carried thereby will rotate with the hubs 54, 154 and the member 3, this' rotation of the hub" 70 being trans mitted to the gage disk 1 and blocks 2 and 22 by any suitable means. As one convenient form of such means I have shown a stud or pin 80 projecting from the hub 70 in position to enter a notch 81 in the wall of the gage disk 1 so that the latter will rotate with the hub 70, and I have shown the walls .82 in the gage disk 1, so that they are carried therewith, having upwardly eX- tended noses 103 (see Fig. 4), which lie between the similar noses 203 of. the blocks 22, andaccordingly these parts will all ro tate in unison. p

I have provided the respective blocks with pins 201 to prevent accidental displacement of the blocks laterally from the gage member 1', and have provided a plate 83 serving to clamp the members 2 and 22 against vertical displacement, the member 83fpreferably having a slot 84 to receive a pin 85 extending from the hub .70 and similar in arrangement and function to the pin 80 already described, viz. to connect the hub 70 and plate 83 for co-rotation.

In order to constitute the edge device a self-contained unitary structure including i the hub 7 0, gage member 1, blocks 2 and 22 and the plate 83, I have shown the upper end of the hub as threaded at and provided with a screw collar 76, so that when this collar is screwed in place upon the hub 7 0 the edge device, comprising the parts above named, may be taken bodily from the member 3 and replaced without disturbing in any way the adjustment of the blocks 2 and 22, the latter being clamped firmly between the disk 1 and plate 88 by the action of the screw collar 76. To facilitate this clamping action, I have shown a friction ring 77, of suitable material such as lead or rubber, between the disk 1, the blocks 2 and 22 and the separators 82. I have shown at 78 a separator ring designed to prevent the roughened upper surface of the projecting edge of the sole of a model shoe from coming into contact with the noses 103 of the blocks 2 and 22, which might catch the sole edge and prevent it from turning properly upon the face of. the gage disk 1. This ring may be secured in place by suitable means, as for example the pins 79.

In order that the edge 1, pattern disks 4 and 104- and clutch member 47 may be held positively in their co-aXially assembled relation connected to rotate with the clutch collar 46 1 have shown at 86 (see Fig. 3) a binding screw entering a threaded socket 87 in the head of the shaft 3, and a washer ,88 having a slot 89 (see Fig. 1) to pass the shank of the screw 86, the latter preferably having wings 90 in well known fashion to permit the head of the screw to be turned manually into engagement with the collar 88 to press the latter against the subjacent parts 76, 70 and 47, forcing the latter into engagement with the clutch 46. l/Vhen it is desired to remove any of the said parts, the screw 86 may be turned to loosen it, the washer 88 withdrawn and the wings 90 turned upward, after which the edge device may be slipped off and the completed pattern cams 104 and 4 removed. with their hubs 54, 154 and replaced by fresh, uncut pattern blanks, after which the edge device may be put back, or another edge device put in its place to control the operation of the follower 9 and cutter 6 in shaping the cam or pattern.

It will be understood from the above that the setting of the blocks 2 and 22 may be effected either when the edge device is in place upon the shaft 3, as an operation preliminary to the shaping of the pattern disk 4, or the setting of the blocks 2 and 22 may be accomplished while the edge is separated from the shaft 3, as for example by running the circular edge device around the sole of the model shoe, instead of running the shoe around the edge device; also that the blocks 2 and may be set by measurement of any suitable model whose relative variations of contour they are to represent, such as the projecting sole edge of a model shoe, without causing the members 2 and 22 to be engaged with the model.

The lever 7 and its arm 8 may be connected in any suitable manner to provide for the desired coiiperation between the follower 9 and cutter 6, and as one convenient form of such connection I have shown a pivot stud 108 secured by a screw 109, (see Fig. 2) connecting the levers 7 and 8, and I have shown a stud 100 to limit the swinging relative movement of the members 7 and 8 ;-also spring devices 112 and 113 to check at its middle point the swinging movement of the lever 7 around the shaft 5; and a spring plunger 114 controlled by a spring 115 (see Fig. 2), mounted in a boss 116 at the end of an arm 118 of the lever 8, this plunger being adapted to enter a socket 117 in the head ofthe shaft 5, so that normally when the plunger is in place the lever 7 and arm 8 will be connected by the pin 108 and plunger 114 to swing about the pivot bolt 5 as a unitary structure, but when desired the operator can disconnect the plunger 114 and swing the follower 9 out of contact with the edge device blocks 2 and 22. This operation will then cause the lever 7 to swing away with the cutter 61 from contact with the pattern blank, being moved by the action of a device 120 consisting of a roller 121 mounted on a plunger 122 normally forced toward the lever 7 by a spring 123 mounted in a socket 124 carried pivotally at 125 upon the frame 19, a screw 126 serving to regulate the tension upon this spring.

The lever 7 has a stop pro ect1on 127 to limit the motion of the roll 121 in one direction, and another stop 119 serves as a stop to limit the motion of the roll 121 in the other directionythe follower being out of engagement with the bloc rs 2 and 22 when the roll 121 occupies the position of engagement with the stop 119, and in this position the cutter 61 is held against the pattern blank 4 to impart a uniformly circular contour to that part of the blanks periphery not to be controlled by the follower 9.

In Fig. 6 I have shown an important adjunct for apparatus of the character described, comprising a receptacle 62 having a hinge 63 mounted on a pintle 64 attached to the frame 19 by screws 65, the receptacle having an aperture 66 in position to pass into the receptacle the chips cut from blank 4 by cutter 61, a cover 67 serving to prevent escape of the chips during operation of the cutter 61, when the receptacle is swung into the position shown in Fig. 6. When it is desired to clear the pattern-blank 4 and 0pcrating member 61 to replace the blank with an uncut blank, or for adjustments, the receptacle 62 may be swung around on the pintle 64, out of the way, and may be removed readily from the pintle for the purpose of emptying the receptacle, or to clear the pintle for emplacement of a grinding attachment, the provision of which constitutes an important object ofmy .invention,-and

which' I will now describe, one form of the same being illustrated in Figs. 7 and 8.

This attachment may be of any suitable ma-' on the pintle 64, and adjustable thereon rotatively and axially, being provided with a set screw 169 to be engaged with the upper end of pintle 64 to regulate the axial posi: tion or height of the socket member, while a set screw 171 serves as means to regulate the rotative position of the socket member and the carrier arm 162, the latter being secured by clamp 168 in its adjusted position transversely of socket member 167.

The carrierarm 162 is provided with a carrier-head 161 having a stud 163 to receive vone of the teeth 61cwhen the latter have been removed for the purpose of sharpening them, and in accordance with my invention 1 substitute a suitable tool, such as the grinding wheel 172, shown in Fig. 7, upon the arbor 13 so that the same can be rotated by the belt 10 (see'Fig. 1) the cl'utclrhandle 36 having first been pulled out to disconnect the pattern-blank-drivingshaft 3 from countershaft 23.

The head 161 preferably has an abutment pin 166 to insure proper position of the cutter tooth 61 upon the head, and has also preferably a latch 164 tohold the tooth 61 in place, this latch swinging on a pivot screw 165 to clear the tooth 61 when it is desired to'replace it on arbor 13 after removal of grinding wheel 175.

By adjustment of clamp 168, and setscrews 169 and 171, the carrier-head 161 may be set to present the cutter 61 in the exact position required, and but littleadjustment will be needed thereafter, as the removal and replacement of cutter 61 relatively to the carrier-head does not affect the Y adjustment,=and the entire attachment may be removed and replaced similarly without affecting any of the adjustments.

It will be understood that the receptacle and grinding attachment above described can be applied with equal facility to other apparatus of the class described, such as the machines illustrated in my co-pending applications Serial Nos. 415,567 and 637,520

by the mere provision in each instance ofa pintle 64. y

In operation of my improved pattern generator, the parts being in the position shown in Figs. 1 and 2, the plunger114 is pulled upward which permits the spring device 120 toforce the lever and cutter 61 away from the pattern blank disk, and the operator pushes the plunger 114 away from him,

which swings the arm 8 and follower 9 away from the blocks 2 and 22. The operator then loosens thethumb screw 86 and collar 76 slightly to release the blocks 2 and 22 from frictional engagement between the plate 1 and plate 83,andpullsthe blocks all outward to a convenient distance suitable for engagement with the upper or a model shoe, of which the operator places the sole edge against the gage disk 1 and turns the shoe upon the gage 1 as a track, causing the latter to rotate; If desired the handle 36 of the clutch mayv first be pulled out, disconnecting the worm sleeve 28 from the clutch member 32 and from the countershaft 23, so that the shaft 3 anddisk 1 with blocks 2 and 22 can turn freely with the sole edge of the model shoe.

When the sole edge has completed its turning movement, and theblocks 2 and 22 against the hubs 154 and 54 and coupling x the clutch members 47' and 46 for co-rotation with the shaft 3, and the plunger 114 is pulled over toward the operator pressing the follower 9 into engagement with the blocks 2 and 22, and the cutter 61 into engagement with the periphery of the pattern blank 4.

The clutch member 36 is then pushed home to connect the counter-shaft 23 with the shaft 3 through the devices set forth in the preceding paragraphs, and the shaft 3 rotates, carrying with itthe circular edge blocks 2 and 22, which move past the'follower 9, and the latter is moved to and fro radially in accordance with the projection of the blocks 2 and 22,, each outward movement of the follower 9 swinging the arm 8 and lever 7 so as to bring the cutter 61 into deeper cutting engagement with the periphery of the disk 4, After the shaping of the disks periphery has been completed the plunger 114 is pulled out, the thumb screw 86, ispartially unscrewed, the washer 88 is removed, and the hub 7 0 carrying the self to the specific construction and materials selected for illustration and description by Way of example, nor in general do 1 limit myself otherwise than as set forth in the claims.

What I claim as new, and desire to secure by United States Letters Patent, is

l. A model-device comprising a plurality of curved pattern-control-edges, operable in juxtaposition for simultaneous engagement with a model, one of said edges comprising members movable radially to vary the contour of said edge.

2. A model-device comprising a plurality of curved pattern-control-edges, arranged co-axially, for simultaneous engagement with a model, one of said edges comprising members movable radially to vary the contour of said edge.

3. model-device comprising a plurality of substantially circular pattern-controledges, arranged co-axially, for simultaneous engagement with a model, one of said edges being of variable radius, and another of said devices being of fixed radius.

4. A model-device comprising a plurality of substantially circular pattern-controledges, arranged co-aXially, one of said edges being of variable radius; said variable edge including a number of independently movable members, extensible radially beyond the periphery of another of said circular edges, the latter serving as a track for engagement with a model to set said variable members.

5. A model-device comprising a plurality of substantially circular pattern-controledges, arranged coaXially, for simultaneous engagement with a model, one of said edges being of variable radius; said variable edge including a number of blocks movable radially; and means to secure said blocks in adjusted position respectively.

6. A model-device for apparatus of the class described; said device comprising a rotatable support; a multiplicity of thin edge members mounted for radial adjustment thereon; and means to secure said members in adjusted position.

7. A model-levice comprising a substantially circular gage; and a series of radially adjustable edge members, adjustable by engagement with a modelengaged movably with said gage.

8. A model-device comprising a substantially circular track constructed and arranged to be engaged movably with a shoesole; and a series of radially movable members for engagement with, and to be positioned by, the upper of said shoe.

9. A model-device comprising a gageplate; a retaining plate; and a series of radially movable edge-members embraced between said plates. I

10. A model-device comprising a. gage plate; a retaining plate; and a series of radially movable edge-members embraced between said plates; a hub, having a flange and a threaded collar between which said parts are clamped, and means to connect having noses presented circumferentially for engagement, the members of said two series alternating.

l2. Pattern-generating apparatus; com prising a pattern-wheel and its mounting; a

'pattern-and-cutter-swing-frame in central relation supported on said mounting adjacent to, and to cooperate with, said patternwheel; and, in combination with said pattern-wheel and swing-frame, a chip-receptacle and a grinding attachment alternately cooperating at times with said pattern-andcutter-swing-frame at the same region of said mounting.

13. A model-device for apparatus of the class described; comprising a gage having upright separator portions with intervening radial seats; a series of pattern-edge controlling blocks' movable radially in said seats; and a second series of blocks above said gage, alternating with the blocks of said lower series, said blocks in both series presenting noses adjacent to the periphery of said gage in overlapping relation with their neighbors, and said blocks respectively having retaining pins; a separator ring between said series of blocks; a retaining plate above said upper series of blocks; a hub in central relation with said gage, blocks, ring and plate and having near one end a retaining flange and near its other end a threaded portion; a threaded collar upon said hub, to hold said plate, blocks, ring and gage compressed against said fiange with said blocks secured in adjusted position; and splines connecting said hub, gage and plate co-rotatively; said modeldevice being movable bodily as a unitary structure.

14.. Apparatus of the class described; comprising an upright driving shaft, and coaxially arranged pattern-blank supporting means and a model-device superimposed in the order named, said model-device being removable bodily to clear said patternblank for replacement.

15. A compound operating lever for apparatus of the class described; said lever comprising a swing-arm having an operating member; a lever connected pivotally with a medial portion of said swing-arm; and having a follower; said operating member and follower being mounted in opposed relation to a common axis of operation; and manually operable means to connect said lever members at times to. swing as a unitary structure. Y

16. A compound operating lever for apparatusof the class described; said lever comprising a swing-arm having a pivotal bearing near one end, and an operating member near 1ts free end, also a lever having a follower near one end and a spring-con trolledhandle near its other end, said follower lever being connected medially with said swing-arm by a pivot having a knob" serving as an actuating handle to move said compound lever bodily, and said spring-controlled han'dle operable manually to connect said lever members at times, and operable when released to actuate said follower lever.

adjustable manually for engagement with said arm on either side of said pivot, to cause said arm to swing normally in one directionor the other, an operating member mounted on the free end of said swing-arm, and a follower lever mounted pivotally upon the me dial portion of said swing-arm.

18. Apparatus of theclass described; com-i prising a pattern-blank-support; a modeldevice co-aXial therewith; and a compound operating-lever including a swing-arm having a pivot bearing near one end and an operating member near its free end for engagement with said pattern-blank at one side, a follower lever mounted pivotally on a medial portion of said swing-arm and having a follower device for engagement with said model-device on the opposite side from I said operating member, said lever having a manually operated coupling device to con-.

nect said lever members at times for control of sa1d operating member by sa1d follower;

a spring-dog movable into one position of engagement with said swing-arm to hold said follower against said model-device when said follower lever is coupled to said swing-arm, said sprin'g-dogbeing movable into another position of engagement with said swing-arm to hold said operating member in predetermined relationwith said pattern-blank-support, "notably when said fol-' lower lever is uncoupled.

19. Pattern-generating apparatus; comprising a rotary pattern-blank (support, a

pattern-edge device, and the mounting for the same; a pattern; follower and cutterswing-frame in central relation 7 supported on said mounting adjacent to, and to co,-

vice and swing-frame, a chip-receptacle and a grinding attachment alternately coiiperating at times with said pattern-follower-andcutter-swing frame atthe same regionv of said mountin i I v.

In testimony whereof I have signed my name to this specification in the presence of two subscribing wltnesses.

FREDERICK H. PERRY. Witnesses: a

CHESTER E. ROGERS, RUTH E. WARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 110.

7 operate with,said pattern-edge device; and,

in combination with said pattern-edge de- It is hereby certified that in Letters Patent No. 1,152,967, granted September 7,

1915, upon the application of Frederick H. Perry, of Beverly, Massachusetts, for an improvement in Machines for Generating Patterns, an error appears in the printed specification requiring correction as follows: Page 3, line 28, for the word print read point; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 14th day of March, A. D., 1916.

[sEALJ J. T. NEWTON,

Acting Commissioner of Patents; 

